JPH0148207B2 - - Google Patents
Info
- Publication number
- JPH0148207B2 JPH0148207B2 JP59161410A JP16141084A JPH0148207B2 JP H0148207 B2 JPH0148207 B2 JP H0148207B2 JP 59161410 A JP59161410 A JP 59161410A JP 16141084 A JP16141084 A JP 16141084A JP H0148207 B2 JPH0148207 B2 JP H0148207B2
- Authority
- JP
- Japan
- Prior art keywords
- ferrite
- group
- amount
- alkali metal
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 139
- 238000000034 method Methods 0.000 claims description 70
- 239000003795 chemical substances by application Substances 0.000 claims description 66
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 45
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 239000003513 alkali Substances 0.000 claims description 34
- -1 alkali metal salts Chemical class 0.000 claims description 29
- 239000000126 substance Substances 0.000 claims description 28
- 229910052783 alkali metal Inorganic materials 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- KQTIIICEAUMSDG-UHFFFAOYSA-N tricarballylic acid Chemical compound OC(=O)CC(C(O)=O)CC(O)=O KQTIIICEAUMSDG-UHFFFAOYSA-N 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052788 barium Inorganic materials 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
- 229910052787 antimony Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- BJRNKVDFDLYUGJ-RMPHRYRLSA-N hydroquinone O-beta-D-glucopyranoside Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=C(O)C=C1 BJRNKVDFDLYUGJ-RMPHRYRLSA-N 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 5
- LDMOEFOXLIZJOW-UHFFFAOYSA-N 1-dodecanesulfonic acid Chemical compound CCCCCCCCCCCCS(O)(=O)=O LDMOEFOXLIZJOW-UHFFFAOYSA-N 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- HBRNMIYLJIXXEE-UHFFFAOYSA-N dodecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCN HBRNMIYLJIXXEE-UHFFFAOYSA-N 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 229910052745 lead Inorganic materials 0.000 claims description 5
- 239000001509 sodium citrate Substances 0.000 claims description 5
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 5
- 229940083575 sodium dodecyl sulfate Drugs 0.000 claims description 5
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 5
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 claims description 5
- 239000001593 sorbitan monooleate Substances 0.000 claims description 5
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 5
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 5
- 229910052712 strontium Inorganic materials 0.000 claims description 5
- LPTWEDZIPSKWDG-UHFFFAOYSA-N benzenesulfonic acid;dodecane Chemical compound OS(=O)(=O)C1=CC=CC=C1.CCCCCCCCCCCC LPTWEDZIPSKWDG-UHFFFAOYSA-N 0.000 claims description 4
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 4
- SSILHZFTFWOUJR-UHFFFAOYSA-N hexadecane-1-sulfonic acid Chemical compound CCCCCCCCCCCCCCCCS(O)(=O)=O SSILHZFTFWOUJR-UHFFFAOYSA-N 0.000 claims description 4
- 229920001353 Dextrin Polymers 0.000 claims description 3
- 239000004375 Dextrin Substances 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N Glycolaldehyde Chemical compound OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 3
- 229960000271 arbutin Drugs 0.000 claims description 3
- 239000011668 ascorbic acid Substances 0.000 claims description 3
- 229960005070 ascorbic acid Drugs 0.000 claims description 3
- 235000010323 ascorbic acid Nutrition 0.000 claims description 3
- 239000008119 colloidal silica Substances 0.000 claims description 3
- 235000019425 dextrin Nutrition 0.000 claims description 3
- 229930182470 glycoside Natural products 0.000 claims description 3
- BJRNKVDFDLYUGJ-UHFFFAOYSA-N p-hydroxyphenyl beta-D-alloside Natural products OC1C(O)C(O)C(CO)OC1OC1=CC=C(O)C=C1 BJRNKVDFDLYUGJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 3
- 229960001790 sodium citrate Drugs 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims 3
- 238000001308 synthesis method Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 description 55
- 230000005415 magnetization Effects 0.000 description 54
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 42
- 239000002245 particle Substances 0.000 description 33
- 239000000203 mixture Substances 0.000 description 28
- 239000007864 aqueous solution Substances 0.000 description 24
- 239000002002 slurry Substances 0.000 description 21
- 239000002994 raw material Substances 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 239000007795 chemical reaction product Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 8
- 239000011259 mixed solution Substances 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- 238000005054 agglomeration Methods 0.000 description 7
- 230000002776 aggregation Effects 0.000 description 7
- 239000012670 alkaline solution Substances 0.000 description 7
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 description 7
- 238000005245 sintering Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229960003280 cupric chloride Drugs 0.000 description 6
- 239000003814 drug Substances 0.000 description 6
- 229940079593 drug Drugs 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000006247 magnetic powder Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- CUPCBVUMRUSXIU-UHFFFAOYSA-N [Fe].OOO Chemical compound [Fe].OOO CUPCBVUMRUSXIU-UHFFFAOYSA-N 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910021519 iron(III) oxide-hydroxide Inorganic materials 0.000 description 3
- 229910000000 metal hydroxide Inorganic materials 0.000 description 3
- 150000004692 metal hydroxides Chemical class 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000007130 inorganic reaction Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- 229910002588 FeOOH Inorganic materials 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 229940082004 sodium laurate Drugs 0.000 description 1
- 229910001631 strontium chloride Inorganic materials 0.000 description 1
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0063—Mixed oxides or hydroxides containing zinc
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0072—Mixed oxides or hydroxides containing manganese
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/009—Compounds containing iron, with or without oxygen or hydrogen, and containing two or more other elements
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/80—Compounds containing cobalt, with or without oxygen or hydrogen, and containing one or more other elements
- C01G51/82—Compounds containing cobalt, with or without oxygen or hydrogen, and containing two or more other elements
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/80—Compounds containing nickel, with or without oxygen or hydrogen, and containing one or more other elements
- C01G53/82—Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70678—Ferrites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16141084A JPS6140823A (ja) | 1984-07-31 | 1984-07-31 | マグネトプランバイト型フエライトの水熱合成法 |
| NL8502051A NL8502051A (nl) | 1984-07-31 | 1985-07-17 | Hydrothermische werkwijze voor de bereiding van magnetoplumbitisch ferriet. |
| DE19853527478 DE3527478A1 (de) | 1984-07-31 | 1985-07-31 | Hydrothermales verfahren zur herstellung von magnetoplumbitischen ferriten |
| US07/005,390 US4789494A (en) | 1984-07-31 | 1987-01-09 | Hydrothermal process for producing magnetoplumbitic ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16141084A JPS6140823A (ja) | 1984-07-31 | 1984-07-31 | マグネトプランバイト型フエライトの水熱合成法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6140823A JPS6140823A (ja) | 1986-02-27 |
| JPH0148207B2 true JPH0148207B2 (enrdf_load_stackoverflow) | 1989-10-18 |
Family
ID=15734561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16141084A Granted JPS6140823A (ja) | 1984-07-31 | 1984-07-31 | マグネトプランバイト型フエライトの水熱合成法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4789494A (enrdf_load_stackoverflow) |
| JP (1) | JPS6140823A (enrdf_load_stackoverflow) |
| DE (1) | DE3527478A1 (enrdf_load_stackoverflow) |
| NL (1) | NL8502051A (enrdf_load_stackoverflow) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067526B2 (ja) * | 1985-11-28 | 1994-01-26 | 戸田工業株式会社 | 板状Ｂａフエライト粒子粉末の製造方法 |
| JPS62216920A (ja) * | 1986-03-14 | 1987-09-24 | Dowa Mining Co Ltd | マグネトプランバイト型フエライト粉末およびその製造方法 |
| FR2605623B1 (fr) * | 1986-10-23 | 1989-06-09 | Kodak Pathe | Procede de preparation de particules magnetiques d'hexaferrites, particules obtenues et produits les contenant |
| JP2547000B2 (ja) * | 1986-12-25 | 1996-10-23 | 石原産業株式会社 | 磁気記録用強磁性微粉末 |
| JPS63260104A (ja) * | 1987-04-17 | 1988-10-27 | Nippon Zeon Co Ltd | 磁気記録用磁性粉 |
| JPS63260110A (ja) * | 1987-04-17 | 1988-10-27 | Nippon Zeon Co Ltd | 磁気記録用磁性粉 |
| JPS63260106A (ja) * | 1987-04-17 | 1988-10-27 | Nippon Zeon Co Ltd | 磁気記録用磁性粉 |
| FR2616440B1 (fr) * | 1987-06-12 | 1993-01-08 | Cga Hbs | Compose pulverulent magnetique pour une encre |
| JP2620256B2 (ja) * | 1987-10-01 | 1997-06-11 | 日立マクセル株式会社 | 磁気記録媒体 |
| DE3808861A1 (de) * | 1988-03-17 | 1989-09-28 | Bayer Ag | Feinteilige kaliumhaltige magnetische hexaferritpigmente aus faellungsmagnetit, verfahren zur ihrer herstellung und deren verwendung |
| US5075169A (en) * | 1988-06-08 | 1991-12-24 | Toda Kogyo Corp. | Plate-like composite ferrite particles for magnetic recording and process for producing the same |
| DE3907914A1 (de) * | 1989-03-11 | 1990-09-13 | Bayer Ag | Feinteilige magnetische hexaferrite mit geringer temperaturabhaengigkeit der koerzitivkraft sowie deren verwendung |
| JPH02267122A (ja) * | 1989-04-07 | 1990-10-31 | Nippon Zeon Co Ltd | 磁気記録媒体用磁性粉 |
| JPH02296303A (ja) * | 1989-05-11 | 1990-12-06 | Nippon Zeon Co Ltd | 磁気記録媒体用磁性粉 |
| JP2517583Y2 (ja) * | 1991-02-21 | 1996-11-20 | 石川島播磨重工業株式会社 | 海水吸入装置 |
| CN1042626C (zh) * | 1995-07-06 | 1999-03-24 | 南京理工大学 | 超细六角晶系铁氧体的制备方法 |
| JP2002298333A (ja) * | 2001-03-29 | 2002-10-11 | Fuji Photo Film Co Ltd | 六方晶系フェライトの製造方法及びそれを用いた磁気記録媒体 |
| KR100586086B1 (ko) * | 2002-02-05 | 2006-06-01 | 충남대학교산학협력단 | 연속식 수열합성 반응기를 이용한 ｐｚｔ 나노 분말의제조 |
| US20040014733A1 (en) * | 2002-04-10 | 2004-01-22 | Binder Thomas P. | Hydrothermically processed compositions containing phytosterols |
| DE102006023244A1 (de) * | 2006-05-18 | 2007-11-22 | Lanxess Deutschland Gmbh | Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung |
| CN101345109B (zh) * | 2008-05-01 | 2011-03-16 | 浙江师范大学 | 镍锌铜铁氧体吸波材料的制备方法 |
| JP5628063B2 (ja) * | 2010-03-26 | 2014-11-19 | 富士フイルム株式会社 | 難燃剤用金属水酸化物微粒子の製造方法 |
| JP5917452B2 (ja) * | 2013-07-08 | 2016-05-18 | 富士フイルム株式会社 | 六方晶フェライト磁性粒子の製造方法、および磁気記録媒体の製造方法 |
| CN103408063B (zh) * | 2013-08-07 | 2015-08-26 | 江苏大学 | 以木素磺酸盐为表面活性剂水热法制备纳米氧化锌的方法 |
| JP6280922B2 (ja) * | 2013-09-30 | 2018-02-14 | 富士フイルム株式会社 | 六方晶フェライト粒子の製造方法および磁気記録媒体の製造方法 |
| JP5998170B2 (ja) * | 2014-03-28 | 2016-09-28 | 富士フイルム株式会社 | 六方晶フェライト粉末の製造方法および磁気記録媒体の製造方法 |
| US20180009677A1 (en) * | 2015-01-22 | 2018-01-11 | Powdertech Co., Ltd. | Hexagonal plate shaped ferrite powder, manufacturing method thereof, and resin compound and molded product using the ferrite powder |
| JP6434866B2 (ja) * | 2015-06-30 | 2018-12-05 | 富士フイルム株式会社 | 六方晶フェライト粉末の製造方法および磁気記録媒体の製造方法 |
| CN105645476B (zh) * | 2016-03-24 | 2017-07-07 | 陕西科技大学 | 一种微波水热法制备纳米Sr(Fe0.5Nb0.5)O3粉体的方法 |
| CN110137346B (zh) * | 2019-06-18 | 2023-04-18 | 西安工业大学 | 一种锰掺杂铁酸钬HoMnxFe1-xO3磁电材料的制备方法 |
| CN111268742A (zh) * | 2020-02-12 | 2020-06-12 | 西安工程大学 | 一种四氧化三铁量子点的制备方法 |
| CN112408498A (zh) * | 2020-11-26 | 2021-02-26 | 上海颜钛实业有限公司 | 一种尖晶石型铁氧体CoFe2O4纳米粉体的水热制备方法 |
| CN113087516B (zh) * | 2021-03-31 | 2022-07-22 | 重庆上甲电子股份有限公司 | 利用工业废弃物制备锰锌铁氧体的低温烧结方法 |
| JP7664787B2 (ja) * | 2021-07-30 | 2025-04-18 | Ｄｏｗａエレクトロニクス株式会社 | キャリア芯材 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL111324C (enrdf_load_stackoverflow) * | 1957-05-13 | 1965-06-15 | ||
| DE2533714A1 (de) * | 1975-07-28 | 1977-02-17 | Fuji Photo Film Co Ltd | Verfahren zur herstellung eines magnetmaterials und ein dasselbe enthaltendes magnetisches aufzeichnungsmedium |
| JPS55149137A (en) * | 1979-05-11 | 1980-11-20 | Tdk Corp | High performance high coercive force powder and its manufacture |
| JPS55154322A (en) * | 1979-05-11 | 1980-12-01 | Tdk Corp | Manufacture of iron oxide |
| JPS55149138A (en) * | 1979-05-11 | 1980-11-20 | Tdk Corp | Iron oxide hydrate containing silicon and phosphorus, and its manufacture |
| DE3041960C2 (de) * | 1979-11-08 | 1983-07-21 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Verfahren zur Herstellung eines Magnetpulvers für die Magnetaufzeichnung mit hoher Dichte |
| JPS5756329A (en) * | 1980-09-22 | 1982-04-03 | Toshiba Corp | Manufacture of magnetic powder for magnetic recording medium |
| EP0072437B1 (de) * | 1981-08-19 | 1987-01-07 | BASF Aktiengesellschaft | Verfahren zur Herstellung feinteiliger Ferritpulver |
-
1984
- 1984-07-31 JP JP16141084A patent/JPS6140823A/ja active Granted
-
1985
- 1985-07-17 NL NL8502051A patent/NL8502051A/nl not_active Application Discontinuation
- 1985-07-31 DE DE19853527478 patent/DE3527478A1/de active Granted
-
1987
- 1987-01-09 US US07/005,390 patent/US4789494A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4789494A (en) | 1988-12-06 |
| DE3527478C2 (enrdf_load_stackoverflow) | 1989-02-16 |
| JPS6140823A (ja) | 1986-02-27 |
| DE3527478A1 (de) | 1986-02-06 |
| NL8502051A (nl) | 1986-02-17 |
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